Machine for mechanical reproduction of ink-drawings.



P. G. SHOURDS.

MACHINE FOR MECHANICAL REPRODUCTION OFINK DRAWINGS.

' APPLICATION FILED SEPT. 2. 1915,

` Patented May 9, 1916.

THE COLUMBIA PLANUURAPH Co.. WASHINGTON, D. C.'

anic.;

PAUL G. ,SHOURDS, OF CHICAGO, ILLINOIS, ASSIGNOR TO AMERICAN BLUE PRINT PAPER COMPANY, OF CHICAGO, ILLINOIS, A'CORPORATION OF ILLINOIS.

`MACHINE FOR MECHANICAL REPRODUCTION OF IN K-DRAWING-S.

maracas. y y

To all whom t may concern.' y f Be it known that I, PAUL G. SHoUnDs, a citizen of the United States of America, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Machines for Mechanical Reproduction of Ink-Drawings, of which the following is a specification.

The main objects of this invention are to provide an improved formfof machine for mechanically reproducing inl; drawings, tracings, etc.; to providean improved arrangement of ya film-carrying member adapted for use in such a machine; to provide improved means for coatingy said member ywith an impression film; andy to provide an improved arrangement rof pressure-creatingy means coacting Awith said lm-carrying member to facilitatey and insurethe accurate reproduction of ink drawings, tracings, etc.

An illustrative embodiment of this invention is shown inthe accompanying drawings, in which-A f Figure l is aside elevation of the im` proved machine. Fig. 2"is an end view taken from the right of fFig. l, the kpressure roller being shown in its elevated position. Fig. 3 is a planof theright hand end of the machine.r Fig. 4 is an enlarged ,detail partly sectional of the truck which assists in the support of the carriage.

In the construction shown in the drawings, the machine comprises a horizontally disposedtable l supported on ystandards ork legs 2 and carrying rollers 3, 4, y5 and 6 ar'- ranged to 'move and guide a film-carrying member or belt 7 on the said table 1. A carriage 8 is reciprocatingly mounted on the table 1 so as to move a roller 9 bacland forth?` over the lm-carrying member or belt The film-carrying` member or belt 7 may be of any suitable iexiblefmaterial, prefer-l ably non-absorbent. Linoleum or oilcloth has been found to be avery satisfactory maal terial for this purpose. The rollers 8 and 4 are located 'at oppositeends of the ytable 1 so that their peripheries `are substantially in alinementy with they top of the table,y whereby the belt 7is properly guided in its movements onto and off from the table.

The impression film yis formed on the face ofthe belt 7 by passing the belt through a Specification of Letters Patent.

Patented May e, 191e.

Application led September 2, 17915. ySerial No. 48,612.

suitable bath. This has been conveniently arranged for in the construction herein illus,- trated, by mounting the roller 5 directly below the roller v4 and placing the'roller or idler 6 above'and inward from the'roller 5, which guides the belt 7 so asvto permit a trough 10 to be suspended below the roller 5 1n position to `embrace the lower part thereof.` The trough 10 is filled with a special liquid composition which adheres to the belt as it is passed therethrough, and produces a gelatinous ilmon the face of the belt. .This lilm is adapted to receive an impression, from a ksuitable chemically prepared negative, which is capable of being transferred to drawing materials, such as paper, tracing cloth, etc.

The trough 10 is arranged to be into and out of belt 7. This may be conveniently accompllshed by means of ropes or other flexible members 11V secured at the ends of the trough and passing around guide rollers .12

moved 'to a drum 13 mounted on the legs 2. The

drum 13 is provided `withl a handle 14, by whichy it is operated, and a ratchet 15 and pawl 16 for retaining the trough 10 in any desired position.

The carriage 8 is provided with flangedk rollers 17 which engage tracks 18` formed along the edges of the table 1. A motor 19 isl mounted on the carriage 8, and by means' itself. The contacts of the switch 26 yarev f arranged so as to allow ythe motor to remain position for immersingthe inoperative, or causeit to drive the' carriageV f 8 either forward or backward as occasion may require.

The roller 9 is rotatably mounted on camy bearings 27 which are eccentricallyr con nected to a shaft 28, journaledin ybearings 29 onl the carriage 8. Hand levers 301 are integrally secured to the cams 27 by means 0f which the shaft 28 may be rotated for thepurpose of shifting the cam bearings 27,

positions (180 degrees) the rollers engage their tracks 18 and raise the roller 9 out of contact with the belt 7. Y Y

A motor 31 is herein shown' to be connected bya belt 32 and worm-33 and 'gear 34 to. drive thev roller 5 for the purpose of moving the belt 7 over .the table 1. Thel shaft 35 for the roller 3 is mounted in bearings 36 shiftably mounted on the brackets 37, each of which is provided with an adjusting screwy 38 for regulating the tension of the belt 7.

The operation of the device shown is as `followsfvVhen it is desired to make a quantity Vof ink reproductions of a certain drawing, a suitable chemically treated Vnegative is cbtained'from said drawing. The motor 31 is thenl operatedv so as to move the belt 7 through the liquid in the trough 10 and onto the table 1 untila suliicient portion of the coated belt is on the table to receive the size of the drawing to be reproduced. The negative above referred to is then placed upon the film and the motor 19 operated to move the roller across said negative, whereupon Ythe lines on the negative are reproduced'upon the film. After the roller has traversed the entire length. of the negative, itis elevated and the carriage returned to its normal position. The negative is then removed from` the' filmand the film has` a coating' of inkt-applied thereto by means of a roller, or in 'any'other suitable manner. The sheets Vof drawing material, such as paper or tracing cloth,.upon which the reproductions are desired, yare -then placed one at a time upon the film of the belt 7, vwhereupon theroller9 is lowered and the carriage 8 isinoved to cause said roller to traverse the entire length of said material as it bears thereupon. Atthe end of the travel of the carriage the roller 9 is againelevated and the carriage. returned to its normal position. The sheet of drawing material is removed and without reinking the films the operationis repeated until the desired number of reproductions have been obtained. After the desired number of reproductions have been made, the film is removed `from ther-belt 'bymeans of a suitable scraper, whereupon i the machineVv is ready to be usedl for reproducing other sets of drawings in like manner.V vIt'will Vthus be Vobserved 'that this arrangement of a machine for mechanically reproducing ink drawings makes it possible to obtain reproductions in quantities in a very short length of time, the accuracy of which is assured by reason of the arrangement of the roller 9 and the carriageS on the' table 1.

Although but one speciic embodiment of this invention has been herein shown and.

said member, means for relatively shifting said member and roller into and out of'po* sition to coact with said film, and mechanism for causingv the relative movement ofsaid member and roller along said member.l

2. A machine -of the class described,com

prising a film-carrying member, a batharf ranged to have saidV member pass therethrough for forming an impression lmoii said member adaptedto receive a design,,a rollermonnted tol traverse said member, means for `relatively shifting' said member and roller into and out of positionto'ooact with said film, and mechanism for causing the lrelative movement of said member and roller along said member.

3. A machine of the class described, comprising a film-carrying member,.a bath arranged to have said memberv pass-there through for forming an impressionffilm onY said member adapted to receive a design, a roller mounted to traverse said-'member, means for relatively shifting said'vmember and roller into and out of positionto coact with said film, mechanism vfor causing the relative movement of said member and roller along said member, andmeans .for shifting said bath into and out of positionfor coat-V ing saidmember with an impression film.-

11. A machine of the class described,.com

prising a table, rollers mounted on 'said table, a belt passing around said rollers andV across saidtable,ineans for coating said-belt with an impression film adapted to receive a design, a carriage movable along, said table, a roller, nan eccentric connectionon saidfcarriage, meansfor shifting said eccentric for moving said roller towardy and away from saidfilm, and mechanism for reciprocating said carriage along said table.-

5'. A machine of the class described,com

prising a table, rollers mounted on saidtable,

a belt passingaround4 said rollers and across said table, a bath arranged to havesaidbelt pass therethrough for forming an impression film on the face thereof adapted to receive a design, and a roller movable along said table tocreate pressure on said film.

(i. A machine of the class described, comprising a table, rollers mounted on said table, a belt passing around said rollers and across said table, a bath arranged to have said belt pass therethrough for forming an impression lilm on the face thereof adapted to receive a design, a roller movable along said table to create pressure on said film, and means for shifting said bath into and out of position for coating said belt.

7. A machine of the class described, comprising a horizontally disposed table, rollers mounted at the ends of said table, another roller mounted below one of said iirst vmentioned rollers, an idler mounted on said table inwardly and above said other roller, a belt passing over said rollers and idler and across said table, a trough embracing said other roller and adapted to contain a bath for coating said belt with an impression film adapted to receive a design, means for moving said belt through said bath and onto said table, and a roller movable along said table for Creatin pressure on said film.

8. A mac me of the class described, comj passing over said rollers and idler and across said table, a trough embracing said other roller and adapted to contain a bath for coating said belt with an impression film adapted to receive a design, means for moving said belt through said bath and onto said table, a roller movable alongsaid table for creating pressure on said lm, a drum mounted on said table, ieXible means connecting said trough to said drum so as to shift said trough into and out'of position for immersing said belt in said bath.

Signed at Chicago this 28th day of August 1915.

PAUL e. sHoURDs.

Copies of this patent may be obtained for ive cents each, by addressing the "Commissioner of Patents, Washington, D. G. 

